The Centre for Emerging Learning Technologies (CELT)has successfully developed and added its mobile application version to the Google play Store. The mobile app includes two different online activities; online tools and online experimentation facilities. Both are fully compatible with the different scenarios of COVID-19; either with full on-campus attendance, keeping social distancing, or remotely in case of full closure. The online tools are simulation based interactive activities students can use to understand key concepts in different engineering disciplines. This includes different Hubs where each one groups the fundamental concepts within a specific thread such as; structural analysis Hub, electromagnetic Hub and renewable energy Hub. The online experimentation facilities were developed based on the use of mixed-reality experiments, where the experiment’s output data are initially obtained through a real operation of the experiment, then stored on the cloud to be used during the online session. The advantages of this technique, compared to other online ones. are that the online student will get real measurement data typically as if the experiment is performed in normal conditions. Both remote as well as on-campus students will have the same experiment’s performance. In addition, videos showing the real operation of the experiment as well as images for the used setup have also been integrated within the online platform to enhance students’ experience and engagement. Different mixed reality (online aerodynamic experiments as well as control system design serving undergraduate students have been designed and developed using the available testing resources in the “Wind Tunnel” on campus.